Carbureter.



No.- 798,418. PATENTED AUG. 29, 1905.

' G. JOHNSON.

GARBURETER.

APPLICATION FILED NOV. 14, 1904.

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UNITED STATES PATENT oFuIoE.

GUSTAF JOHNSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ILLINOIS LIGHT ANDFUEL COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Specification of Letters Patent.

CAIRBURETER.

Patented Aug. 29, 1905.

Application filed November 14, 1904. Serial No. 232,557.

To all whom it may concern.-

.Be it known that I, G sTAF JOHNSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Carbureters, of whichthe following is a specification.

This invention relates to improvements in machines used for carburetingair; and it consists in certain peculiarities of the construction, novelarrangement, and operation of the various parts thereof, as will behereinafter more fully set forth and specifically claimed.

The object of the invention is to provide an apparatus of theabove-named character which shall be simple in construction, easy tooperate, and reasonable in cost of manufacturing.

A further object of the invention is to provide means for regulating theamount of air supplied to or mixed with the gas.

Other objects and advantages of the invention will be disclosed in thesubjoined description and explanation.

In order to enable others skilled in the art to which my inventionpertains to make and use the same, I will now proceed to describe it,referring to the accompanying drawings, in which- Figure 1 is a centralvertical sectional view of a carbureter embodying my invention. Fig. 2is a plan sectional view of the inner and outer cylinders, showing theconvoluted atomizing or porous material therebetween, but illustratingthe supporting-screens therefor as being removed; and Fig. 3 is afragmental perspective view of a portion of the said material and a partof the supportingscreens therefor.

Like numerals of reference refer to corresponding parts throughout thedifferent views I of the drawings. 1

The reference-numeral 10 indicates the outer or main receptacle of themachine, which may be made of any suitable size, form, and material, butpreferably of metal and cylindrical in shape, as shown. Extending fromthe top of the receptacle 10 to near its bottom is an air-conduit 11,which is also preferably cylindrical in form and has its lower end opento permit of the discharge of air therefrom at or near the bottom of themain receptacle. Communicating with the main receptacle 10 in its upperportionis a supply-pipe 12, which leads to and communicates with asupply of gasolene or other hydrocarbon, which source of 10, in anysuitable manner.

supply is not shown, but may be located at any suitable point ordistance from the machine.

Communicating at one of its ends through the top of the receptacle 10and with the upperportion of the air-conduit 11 is an airsupply pipe 13,the other end of which communicates with a supply of air under pressure.(Not shown.)

Horizontally located in the main receptacle 10 at suitable distancesapart are a series of shelves or platforms 14:, each of which isimperforate and surrounds the air-conduit 11 and may be secured thereto,as well as to the inner surface of the walls of the receptacle Each ofthe shelves or platforms 14: is provided near its its outer edge with anupwardly-extending tube 15 or apertured projection. As shown, thesetubes or apertured projections 15 project slightly above the uppersurface of the shelves and are arranged so as to be located aboutdiametrically opposite each other on the alternate shelves. Located oneach of the shelves is a layer of cotton or asbestos 16, which layersmay be of any desired thickness and extend from the air-conduit 11 tothe walls of the main cylinder, so as to lie over the tubes or aperturedprojections 15 in the shelves.

Located between the lower surface of the top of the main receptacle 10and the upper surface of the absorbent layer 16, adjacent thereto, andbetween the lower surface of each of the shelves 14 and the uppersurface of each of the layers on the underlying shelves is a convolutedatomizer, which comprises a spirally-wound strip of cloth 17 or othersuitable material, which is secured at its upper and lower edges to wirescreens 18, the upper one of which may be fastened in any suitablemanner to the lower surface of the top 19 of the main receptacle or tothe lower surface of each of the shelves. The lower screen 18 will reston or lie horizontally near the upper surface of the absorbent layers16, as shown. The lower shelf in the main receptacle has secured to itslower surface a convoluted atomizer, to the lower edges of which issecured a wire screen 18, which is located a slight distance above thebottom of the main receptacle, as shown in Fig. 1 of the drawings. Aseach of the convoluted atomizers is made of cloth or other porous orforaminous flexible material, it is apparent that the weight of thelower screen 18 thereon will stretch the strip of cloth vertically, andas it is spirally wound with its layers or windings a slight distanceapart there will be formed between the convoluted layers or windingsspaces through which the volatilized hydrocarbon and air will pass, itbeing forced through the pores or small interstices of each of thelayers by pressure, thus dividing the volume of air into small atoms oratomizing it.

The lower portion of the main receptacle 10 is provided with anoutlet-pipe 20, which may lead to the oil-supply tank or any suitablepoint and is for the purpose of removing the overflow or excess of oilfrom the main receptacle.

Mounted on the top 19 of the main receptacle is a gas and air mixer 21,which communicates through a pipe 22 in its bottom with the interior ofthe main receptacle. Leading from the upper portion of the mixer 21 is aservice-pipe 23, through which the gas may be supplied to suitableburners (not shown) used for illumination, heat, or for generatingpower. Communicating at one of its ends with the air-supply pipe 13 andat its other end with the pipe 22, which leads to the air and gas mixer,is a pipe 2 1, which is provided with a regulating-valve 25, which pipeand valve are employed for regulating the quantity of air to be mixedwith the gas as it passes from the main receptacle to the mixer 21,which mixer is provided with a series of diagonally-disposed partitions26, between which is located a quantity of cotton or asbestos 2701'other absorbent. Each of the partitions 26 is provided with an opening28, and said openings are arranged alternately at or near the ends ofthe partitions, thus causing the mixture of gas and air to pursue azigzag course through the absorbent material in the mixing vessel.

From the foregoing and by reference to the drawings it will be readilyseen and clearly understood that by supplying oil through the pipe 12 tothe upper portion of the receptacle 10 the layer of cotton or otherabsorbent material 16 on the upper shelf will become saturated therewithand that when a suflicient quantity of oil will have been supplied itwill overflow from the upper shelf through the apertured projection 15to the layer 16, below said upper shelf, and so on through the series oflayers to the bottom of the vessel, from which the excess of oil may bedrawn ofi through the pipe 20, as before stated. When thus supplied withoil, air under pressure may be admitted to the main receptacle 10through the air-supply pipe 13 and conduit 11, from the lower end of thelatter of which it will be discharged with considerable force, so as toforce its way through the apertured projections 15 and through theabsorbent layers 16, as well as through the convoluted layers of theatomizer 17, in which operation it will be charged with the volatilizedhydrocarbon and will pass in the form of gas through the pipe 22 intothe air and gas mixer 21, where it will be thoroughly mixed with airbefore it is discharged through the service-pipe 23 to the burners. Itis apparent that the quantity of air added to the gas as it passesthrough the pipe 22 may be regulated by means of the valve 25 in theauxiliary pipe 24:, which is employed for this purpose.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

'1. In a carbureter, the combination with the main receptacle, of anoil-supply pipe and an air-supply pipe communicating therewith, a seriesof shelves horizontally located in said receptacle and each having anopening, a layer of absorbent material located on each of said shelves,and a spiral partition of reticulated material located above each ofsaid layers, substantially as described.

2. In a carbureter, the combination with the main receptacle, of an airconduit located therein and having its discharging end near the bottomof the receptacle, an oil-supply pipe communicating with the conduit, aseries of shelves located in the receptacle and each having an opening,said openings being 10- cated diametrically opposite each other .on thealternate shelves, a layer of absorbent material located on each of theshelves, and a spiral partition of reticulated material located aboveeach of the said layers, substantially as described.

3. In a carbureter, the combination with the main receptacle, of anair-conduit located therein and having its discharging end near thebottom of the receptacle, an oil-supply pipe communicating with thereceptacle, an air-supply pipe communicating with the conduit, a seriesof shelves horizontally located in the receptacle and each having anopening, a layer of absorbent material located on each of the shelves, aspiral partition of reticulated material located above each of saidlayers, and a wire screen secured to each of the edges of said strip andsuitably supported at a distance apart, substantially as described.

4:. In acarbureter, the combination with the main receptacle, of anoil-supply pipe and an air-supply pipe communicating therewith, a seriesof shelves horizontally located in the receptacle and each having anopening, a layer of absorbent material located on each of the shelves, aspiral partition of reticulated material located above each of saidlayers, and a wire screen secured to each of the edges of said strip andsuitably supported within the receptacle at a distance apart,substantially as described.

GUSTAF JOHNSON. Witnesses: I

CHAS. C. TILLMAN, A. GUsTAFsoN.

